Dismounting And Mounting The Rear Wheel; Tires, Air Pressure; Checking Spoke Tension - KTM 85 SX 2003 Owner's Manual

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Dismounting and mounting the rear wheel

Jack the motorcycle up on its frame so that the rear wheel no longer tou-
ches the ground.
Loosen the collar nut 1 , remove chain tensioner
and pull out the wheel spindle
caliper support is still held.
Push the rear wheel as far forward as possible, take the chain from the
chain wheel and carefully take the rear wheel out of the swingarm.
!
– D
O NOT OPERATE THE REAR BRAKE WHEN THE REAR WHEEL HAS BEEN DISMOUNTED
– M
AKE SURE THE BRAKE DISC IS ALWAYS ON TOP WHEN YOU LAY DOWN THE WHEEL
OTHERWISE THE BRAKE DISC CAN BE DAMAGED
– I
F THE AXLE IS DISMOUNTED
COLLAR NUT THOROUGHLY AND APPLY A NEW COAT OF GREASE TO PREVENT THE
.
THREAD FROM JAMMING
The rear wheel is remounted in the reverse order. Before tightening the
collar nut to 80 Nm (60 ft.lb), push the rear wheel forwards so that the
chain tensioners lie on the tension screws.
WARNING
– I '
F YOU DON T HAPPEN TO HAVE A TORQUE WRENCH AT HAND
HAVE THE TIGHTENING TORQUE CORRECTED BY A
. A
BLE LOOSE AXLE MAY LEAD TO AN UNSTABLE DRIVING BEHAVIOR OF YOUR
.
MOTORCYCLE
– A
FTER MOUNTING THE REAR WHEEL
.
PRESSURE POINT RETURNS
– I
T IS VERY IMPORTANT TO KEEP THE BRAKE DISK FREE FROM OIL AND FATTY MATTERS
OTHERWISE THE BRAKING EFFECTS WOULD BE STRONGLY REDUCED
– T
IGHTEN THE COLLAR NUT WITH THE REQUIRED TORQUE
MAY LEAD TO AN UNSTABLE BEHAVIOR OF YOUR MOTORCYCLE

Tires, air pressure

Tire type, tire condition, and air pressure level affect the way your motorcy-
cle rides, and they must therefore be checked whenever you are getting
ready to go anywhere on your motorcycle. Tire size can be found in the
technical specifications. Tire condition has to be checked every time you
want to ride your motorcycle. Before leaving, check tires for punctures and
nails or other sharp objects that might have become embedded in them.
Tire pressure should be checked regularly on a "cold" tire. Proper pressure
(1.0 bar) ensures optimum driving comfort and extends the life of your
tires.
WARNING
– D
AMAGED TIRES MUST BE REPLACED IMMEDIATELY TO PROTECT YOUR YOUNGSTER
– W
ORN TIRES CAN HAVE A NEGATIVE EFFECT ON HOW THE MOTORCYCLE PERFORMS
ESPECIALLY ON WET SURFACES
– T
IRE PRESSURE BELOW THE NORMAL LEVEL WILL LEAD TO PREMATURE TIRE WEAR

Checking spoke tension

The correct spoke tension is very important for the stability of the wheels
and thus for riding safety. A loose spoke causes the wheel to become
unbalanced and before long other spokes will have come loose. Check
spoke tension, especially on a new motorcycle, at regular intervals. For
checking, tap on each spoke with the blade of a screwdriver (see photo). A
clear tone must be the result. Dull tones are indicators of loose spokes. If
necessary, have the spokes retightened and the wheel centered by a KTM
dealer.
WARNING
– S
POKES CAN TEAR IF YOU CONTINUE TO RIDE WITH THEM LOOSE
AN UNSTABLE HANDLING OF YOUR MOTORCYCLE
– E
XCESSIVELY TENSIONED SPOKES MAY RUPTURE DUE TO LOCAL OVERLOADING
SPOKES MUST BE TENSIONED TO
2 , hold the rear wheel
3 until the rear wheel is free but the brake
CAUTION
.
,
CLEAN THE THREAD OF THE WHEEL SPINDLE AND
KTM
DEALER AS SOON AS POSSI
,
KEEP OPERATING THE REAR BRAKE UNTIL THE
. A
LOOSE WHEEL SPINDLE
.
.
5 N .
M
!
.
,
,
MAKE SURE YOU
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,
.
.
,
.
. T
HIS MAY LEAD TO
. T
HE